Computer Networks

by V.S. Bagad, I.A. Dhotre

Table of Contents Physical Layer Data communications, Networks, Networks models, OSI model, Layers in OSI model, TCP / IP protocol suite, Addressing, Guided and unguided transmission media. Switching: Circuit switched networks, Data gram networks, Virtual circuit networks.? Cable networks for data transmission: Dialup modems, DSL, Cable TV, Cable TV for data transfer. ? Data Link Layer Data link control: Framing, Flow and error control, Protocols for noiseless and noisy channels, HDLC.? Multiple access : Random access, Controlled access.? Wired LANS : Ethernet, IEEE standards, Standard ethernet, Changes in the standard, Fast ethernet, Gigabit ethernet. ? Wireless LANS Wireless LANS : IEEE 802.11 - Bluetooth. Connecting LANS: Connecting devices, Backbone networks, Virtual LANS.? Virtual circuit networks: Architecture and layers of frame relay and ATM. ? Network Layer Logical addressing: IPv4, IPv6 addresses.? Internet protocol: Internetworking - IPv4, IPv6 - Address mapping - ARP, RARP, BOOTP, DHCP, ICMP, IGMP, Delivery - Forwarding, Routing - Unicast, Multicast routing protocols. ? Transport Layer Process-to-process delivery, User Datagram Protocol (UDP), Transmission Control Protocol (TCP) - Congestion control, Quality of services (QoS), Techniques to improve QoS. ? Application Layer Domain Name System (DNS), E-mail, FTP, WWW, HTTP, Multimedia Network. Security : Cryptography, Symmetric key and public key algorithms, Digital signature, Management of public keys, Communication security, Authentication protocols.

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Published January 1, 2013